We are planning an Alaska cruise/land tour in either May, June, July, or August. We have been told some times, especially May, are not good for sightseeing from the ship due to fog, mist, and low lying clouds. Can anyone verify this? Are there other times when the weather is bad for sightseeing? Are there any particular "best" times? Also, what are the best times, weatherwise, to see Mt. McKinley? When traveling between Anchorage and Fairbanks, is more train and less motorcoach better, or vice versa.